import numpy as np
# 标量 scalar
s = 5
# 向量 vector
v = np.array([1,2])
# 矩阵 matrix
m = np.array([[1,2],[3,4]])
# 张量 tensor
t = np.array([[[1,2],[3,4]],[[5,6],[7,8]]])

print("标量: " + str(s))
print("向量: " + str(v))
print("矩阵: " + str(m))
print("张量: " + str(t))